Analysis
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max time kernel
134s -
max time network
298s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
07-06-2024 01:39
Static task
static1
Behavioral task
behavioral1
Sample
cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe
Resource
win7-20240220-en
General
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Target
cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe
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Size
2.4MB
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MD5
fa3b69af927ad405668e5b2d569d7e66
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SHA1
9a9a881571dc2e8fcb0e20608e5c92d209d02ce2
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SHA256
cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8
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SHA512
9d56aa149dd437d2dff73272f7d0f32ef2cf877723774e551d38f24abea0fabf5ba41d0d009928fc49102928a0694e9bab4ef2240d71311ffc87f9bb2248ffe7
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SSDEEP
49152:wQc81KnB/a/hNT/dRYa8aesY3Ot4N7G/:wDta/hNT/dRn0etD/
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/ta904ek
https://steamcommunity.com/profiles/76561199695752269
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/420-1-0x0000000003F60000-0x00000000040AC000-memory.dmp family_vidar_v7 behavioral2/memory/2992-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2992-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2992-9-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2992-25-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2992-26-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2992-43-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2992-44-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat6448.tmppid process 2992 kat6448.tmp -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exedescription pid process target process PID 420 set thread context of 2992 420 cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe kat6448.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat6448.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat6448.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat6448.tmppid process 2992 kat6448.tmp 2992 kat6448.tmp 2992 kat6448.tmp 2992 kat6448.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exedescription pid process target process PID 420 wrote to memory of 2992 420 cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe kat6448.tmp PID 420 wrote to memory of 2992 420 cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe kat6448.tmp PID 420 wrote to memory of 2992 420 cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe kat6448.tmp PID 420 wrote to memory of 2992 420 cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe kat6448.tmp PID 420 wrote to memory of 2992 420 cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe kat6448.tmp PID 420 wrote to memory of 2992 420 cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe kat6448.tmp PID 420 wrote to memory of 2992 420 cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe kat6448.tmp PID 420 wrote to memory of 2992 420 cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe kat6448.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe"C:\Users\Admin\AppData\Local\Temp\cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:420 -
C:\Users\Admin\AppData\Local\Temp\kat6448.tmpC:\Users\Admin\AppData\Local\Temp\kat6448.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2992
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f